JPH03228539A - Safety device for reprocating feeding mechanism - Google Patents
Safety device for reprocating feeding mechanismInfo
- Publication number
- JPH03228539A JPH03228539A JP1956090A JP1956090A JPH03228539A JP H03228539 A JPH03228539 A JP H03228539A JP 1956090 A JP1956090 A JP 1956090A JP 1956090 A JP1956090 A JP 1956090A JP H03228539 A JPH03228539 A JP H03228539A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- shaft
- runaway
- flat gear
- safety device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000006866 deterioration Effects 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は、産業用ロボット、工作機械等の往復送り機構
の位置決め安全装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a positioning safety device for a reciprocating mechanism of an industrial robot, machine tool, etc.
(ロ)従来の技術
従来、この種の位置決め安全装置としては、第6図に示
す例がある。これは、送りのガイド1に対し、テーブル
2が摺動自在としてなり、該テーブル2の側部にドッグ
3.4を突出し、これを機体側部に設けた位置決めスイ
ッチ5と前後に配する暴走検出用スイッチ6.7で位置
決めをする。(B) Prior Art Conventionally, there is an example of this type of positioning safety device as shown in FIG. This is because the table 2 is slidable with respect to the feed guide 1, and the dog 3.4 is protruded from the side of the table 2, and this is arranged before and after the positioning switch 5 provided on the side of the machine. Position the detection switch 6.7.
図中、8は端子箱、9は配線ケーブル、1oはテーブル
2の移動量設定点である。In the figure, 8 is a terminal box, 9 is a wiring cable, and 1o is a movement amount setting point of the table 2.
この場合の動作を説明すると、テーブル2は何等かの駆
動源によりガイド1に沿って往復運動を行う。このテー
ブル2の運動を規定する際、先ずドッグ3がスイッチ5
を動作させる位置にテーブル2を置き、この位置を原点
と決めるように、制御部分に電気的信号を与える。次に
、テーブル2の移動量をドッグ4がスイッチ7を動作さ
せる点と前記原点との間で、ドッグ4がスイッチ7を動
作させない範囲内で設定する。これによりテーブル2は
原点と設定された設定点10との間で往復運動するよう
に規定される。ここで、万一テープ乙/
ルが何等かの原因で規定された移動範囲を超えて停止し
ないことが起こると、テーブル2はガイド1の範囲を逸
脱し、機構の破損を招く虞がある。To explain the operation in this case, the table 2 performs reciprocating motion along the guide 1 by some driving source. When regulating the movement of this table 2, first the dog 3 is moved to the switch 5.
The table 2 is placed at a position where it is to be operated, and an electrical signal is given to the control section so that this position is determined as the origin. Next, the amount of movement of the table 2 is set between the point at which the dog 4 operates the switch 7 and the origin, within a range in which the dog 4 does not operate the switch 7. The table 2 is thereby defined to reciprocate between the origin and the set point 10 that has been set. If, for some reason, the tape does not stop beyond the specified range of movement, the table 2 may deviate from the range of the guide 1, leading to damage to the mechanism.
これを防止するために暴走検出用スイッチ6.7を配し
、テーブル2が原点で止まらない場合はドック3がスイ
ッチ6を動作させ、またテーブル2か設定点て+hまら
ない場合はド/グア1がスイッチ7を動作させ、テーブ
ル2の暴走を電気的に検知し、該テーブルを停止させる
ものである。To prevent this, runaway detection switches 6 and 7 are installed, and if the table 2 does not stop at the origin, the dock 3 operates the switch 6, and if the table 2 does not reach the set point, the dock 3 operates the switch 6, and if the table 2 does not reach the set point The gua 1 operates the switch 7, electrically detects runaway of the table 2, and stops the table.
二のように、従来は往復運動する対象物の一部あるいは
対象物に取付けた突起物が直接スイ・・ノチを動作させ
ている。As shown in 2, conventionally, a part of an object that moves reciprocatingly or a protrusion attached to the object directly operates the swivel notch.
(ハ)発明が解決しようとする課題
しかし、このような安全装置では、スイッチ7をテーブ
ル2の運動範囲の先に配するため、長い配線ケーブル9
を必要とする。このため、例えばテーブル2の運動範囲
に高温部や水、油滴の飛散する環境が存在する場合、配
線ケーブルか破損し易い。また、スイッチ7の設定が困
難な機構の安全装置の確保、送りガイド1の精度が粗く
、ドック3.4とスイッチ5.6.7との位置関係か一
定に保たれず、信頼性の高いスイッチ機能を期待てきな
い。(C) Problems to be Solved by the Invention However, in such a safety device, since the switch 7 is disposed beyond the range of movement of the table 2, a long wiring cable 9 is required.
Requires. For this reason, for example, if there is a high temperature part or an environment where water or oil droplets are scattered in the movement range of the table 2, the wiring cable is likely to be damaged. In addition, the safety device for the mechanism that makes it difficult to set the switch 7, the accuracy of the feed guide 1 is rough, and the positional relationship between the dock 3.4 and the switch 5.6.7 cannot be maintained constant, making it highly reliable. I don't expect a switch function.
(ニ)課題を解決するための手段
これ等の課題を解決するために本発明ではガイドに沿っ
て摺動自在に設けられたテーブルと、このテーブルを駆
動する駆動機構と、この駆動機構の駆動力を回転力に変
換する変換手段と、この変換手段て取り出された回転力
を用いてテーブルの暴走を検出する検出手段と、を有し
ている。(d) Means for Solving the Problems In order to solve these problems, the present invention provides a table that is slidably provided along a guide, a drive mechanism that drives this table, and a drive mechanism that drives this drive mechanism. It has a conversion means for converting force into rotational force, and a detection means for detecting runaway of the table using the rotational force extracted by the conversion means.
(ホ)作 用
テーブルの摺動領域に沿っての配線やケーブルがなくな
り高温部の存在や水油滴の飛散する環境による配線の劣
化や破損がなくなる。(e) There are no wiring or cables along the sliding area of the working table, and there is no longer any deterioration or damage to the wiring due to the presence of high-temperature parts or an environment where water and oil droplets are scattered.
(へ)実施例
以下、本発明を実施例の図面に基づいて説明すれば、次
の通りである。(F) Examples The present invention will be explained below based on the drawings of the examples.
第1図は本発明往復送り機構の安全装置の要部、第2図
は回部断面、第3図はスイッチ動作部を示し、23は送
り機構駆動用の歯付きタイミングベルトで 二九に歯付
きプーリ14がかみ合っている。Fig. 1 shows the main part of the safety device of the reciprocating feed mechanism of the present invention, Fig. 2 shows a cross section of the rotation part, Fig. 3 shows the switch operating part, 23 is a toothed timing belt for driving the feed mechanism, and 29 is a toothed timing belt. The attached pulley 14 is engaged.
ここで、実施例の作用を簡潔に説明するために、以下の
記号を定義しておく。Here, in order to briefly explain the operation of the embodiment, the following symbols will be defined.
往復送り(7)7.トローツ・・・L(但し、v1械的
な可動範囲とする)
IJff寸きブーりのピッチ径・・d。Reciprocating feed (7)7. Trotz...L (However, v1 mechanical movable range) IJff size boob pitch diameter...d.
小平歯車のピッチ径・・dl
大平歯車のピッチ径・・d2(ここてd2≧d1である
)
往復送りの設定値・・ρ(ここてρ〈してある)原点検
出用スイフチ・・S W 。Pitch diameter of small spur gear...dl Pitch diameter of large spur gear...d2 (here d2≧d1) Setting value for reciprocating feed...ρ (here ρ is set) Swipe for origin detection...S W .
暴走検出用スイッチ・・・S W 2
設定値検比用スイツチ・・・S W 3変換比 Q/′
(τdO)・・n
減速比 d+/dz・・・n
本体固定部に固定された板材1/′には垂直な軸12.
13を並置してあり、軸12に前述の歯付きプーリ14
を、この歯付きプーリ14には中心に軸12を共有する
ように小平歯車15を接合し、これ等歯付きプーリ14
4及び小平歯車15は一体となって軸12の回りで自在
に回転し、軸方向に移動しないように部材16.17に
よって制限する。Runaway detection switch...S W 2 Set value comparison switch...S W 3 Conversion ratio Q/'
(τdO)...n Reduction ratio d+/dz...n The shaft 12. is perpendicular to the plate 1/' fixed to the body fixing part.
13 are arranged side by side, and the above-mentioned toothed pulley 14 is attached to the shaft 12.
A small spur gear 15 is connected to this toothed pulley 14 so as to share the shaft 12 at the center, and these toothed pulleys 14
4 and spur gear 15 are free to rotate together about shaft 12 and are restricted from moving axially by members 16,17.
更に軸13には上記小平歯車15とかみ合うように大平
歯車18を設け、こめ大平歯車18と中心に軸13を?
、有するように、円盤状部材1つを篩える。この大平歯
車18と円盤状部材1つの間には中心に軸1,3と共有
し、円周方向に適当な位置まですらして固定できるよう
に、中心穴と外周との間に三ケ月状の長溝を設けた円盤
20.21を配する。そして円盤状部材19と円盤20
.21の外径は同寸法でそれぞれ円盤状部材19及び円
盤20.21の外周部には突起を1ケ所ずつ設けである
。そして、上記円盤状部材19及び円盤20.21の周
囲には、それぞれの突起によりON / OF Fされ
るようにスイッチをプレート11上に配置している。Furthermore, a large spur gear 18 is provided on the shaft 13 so as to mesh with the small spur gear 15, and the shaft 13 is centered on the large spur gear 18.
, one disk-shaped member is sieved so that it has . The large spur gear 18 and one disc-shaped member share a central part with the shafts 1 and 3, and there is a crescent-shaped part between the center hole and the outer periphery so that it can be fixed evenly to an appropriate position in the circumferential direction. Discs 20 and 21 provided with long grooves are arranged. And a disc-shaped member 19 and a disc 20
.. The outer diameters of the disks 21 and 21 are the same, and one protrusion is provided on the outer periphery of each of the disk-shaped members 19 and disks 20 and 21, respectively. Switches are arranged on the plate 11 around the disc-shaped member 19 and the discs 20 and 21 so as to be turned on and off by respective protrusions.
こうした構成において、設定値Qに対して、n”/n辷
1となるように歯付きプーリ14、小平歯車15、大平
歯車18を決定し、円盤20.21の突起が円盤状部材
1つの突起に対して位相がずれるように取り付ける。円
盤状部材19の突起により0N10FFされるスイッチ
をS W l、円盤20.21の突起によってON /
OF FされるスイッチをそれぞれSWl、SW2と
すると、このときの電気信号のタイミングは第4図のよ
うになる。移動量の設定値を特に検出する必要のないと
きには、S W 、は省略できる。本実施例の他の例と
しては、歯付きタイミングベルトの代りにチェーンを使
用する場合は、歯付きプーリの代りにスプロケットを使
用し、歯付きタイミングベルトの代りに、ランク26を
移動方向に並置すれば歯付きプーリの代りにピニオン2
5にて代用する方法がある。後者の実施例を第5図に示
す。なお、nの値が小さいほど、すなわちnoが大きい
ほど位置決め分解能は向上する。In such a configuration, the toothed pulley 14, the small spur gear 15, and the large spur gear 18 are determined so that n''/n length is 1 for the set value Q, and the protrusions of the discs 20 and 21 are the protrusions of one disc-shaped member. The protrusion of the disc-shaped member 19 turns the switch 0N10FF, and the protrusion of the disc 20.21 turns the switch ON/OFF.
Assuming that the switches that are turned off are SW1 and SW2, the timing of the electrical signals at this time is as shown in FIG. When there is no particular need to detect the set value of the movement amount, S W can be omitted. As another example of this embodiment, if a chain is used instead of a toothed timing belt, a sprocket is used instead of a toothed pulley, and instead of a toothed timing belt, the ranks 26 are juxtaposed in the direction of movement. Then pinion 2 is used instead of toothed pulley.
There is a method of substituting 5. The latter embodiment is shown in FIG. Note that the smaller the value of n, that is, the larger no, the better the positioning resolution becomes.
(ト)発明の効果
以上述べた如く、本発明の安全装置はテーブルの摺動領
域に沿っての配線やケーブルがなくなり、コンパクトで
信頼性の高い往復送り機構の安全装置が提供出来る。(g) Effects of the Invention As described above, the safety device of the present invention eliminates wiring and cables along the sliding area of the table, and can provide a compact and highly reliable safety device for a reciprocating mechanism.
第1図は本発明の往復送り機構の安全装置の要部を示す
斜視図、第2図はその要部断面図、第3図はスイッチ動
作部の分解斜視図、第4図は各スイッチの電気信号のタ
イミングチャート、第5図はラックピニオン式送り機構
への実施例を示す斜視図、第6図は従来の往復送り機構
の安全装置の斜視図である。
11・・板材、12・・軸、13・・・軸、14・・・
歯付きプーリ、15・・・小平歯車、16・・・軸受、
17・・・スペーサ、18・・・大平歯車、19・・・
円盤状部材、20.21・・・円盤、22・・・スペー
サ、23・・・歯付きタイミングベルト、24・・・ス
イッチ、25・・・ピニオン、26・・・ラック、27
・・・止ネジ。Fig. 1 is a perspective view showing the main parts of the safety device of the reciprocating feed mechanism of the present invention, Fig. 2 is a sectional view of the main parts, Fig. 3 is an exploded perspective view of the switch operation part, and Fig. 4 shows the parts of each switch. A timing chart of electric signals, FIG. 5 is a perspective view showing an embodiment of a rack and pinion type feeding mechanism, and FIG. 6 is a perspective view of a safety device of a conventional reciprocating feeding mechanism. 11...Plate material, 12...Shaft, 13...Shaft, 14...
Toothed pulley, 15... small spur gear, 16... bearing,
17... Spacer, 18... Large spur gear, 19...
Disc-shaped member, 20. 21... Disc, 22... Spacer, 23... Toothed timing belt, 24... Switch, 25... Pinion, 26... Rack, 27
...Set screw.
Claims (1)
このテーブルを駆動する駆動機構と、この駆動機構の駆
動力を回転力に変換する変換手段と、この変換手段で取
り出された回転力を用いてテーブルの暴走を検出する検
出手段と、を有して成る往復送り機構の安全装置。1) A table that is slidably provided along a guide,
It has a drive mechanism that drives this table, a conversion means that converts the driving force of this drive mechanism into rotational force, and a detection means that detects runaway of the table using the rotational force extracted by this conversion means. Safety device for reciprocating mechanism consisting of
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1956090A JPH03228539A (en) | 1990-01-30 | 1990-01-30 | Safety device for reprocating feeding mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1956090A JPH03228539A (en) | 1990-01-30 | 1990-01-30 | Safety device for reprocating feeding mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03228539A true JPH03228539A (en) | 1991-10-09 |
Family
ID=12002693
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1956090A Pending JPH03228539A (en) | 1990-01-30 | 1990-01-30 | Safety device for reprocating feeding mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03228539A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63742B2 (en) * | 1980-11-20 | 1988-01-08 | Fujitsu Ltd |
-
1990
- 1990-01-30 JP JP1956090A patent/JPH03228539A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63742B2 (en) * | 1980-11-20 | 1988-01-08 | Fujitsu Ltd |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1431001B1 (en) | Electric clamp apparatus | |
US4920816A (en) | Actuator with a clutch mechanism | |
CA1042931A (en) | Door operator with instant reverse feature | |
US4827199A (en) | Torque responsive motor-drive assembly | |
CN110686459A (en) | Door opening and closing signal detection structure and method and refrigerator | |
US4449417A (en) | Carrier moving mechanism | |
JPH03228539A (en) | Safety device for reprocating feeding mechanism | |
JP2007155731A (en) | Positioning system | |
US5319991A (en) | Motor coupling with angular compliance | |
KR910005263A (en) | Tape cartridge loading / unloading device | |
CA2011516A1 (en) | One-way clutch assembly | |
US5605072A (en) | Load-isolated, single-cycle mechanism | |
JPH04501017A (en) | Variable aperture formed by linearly movable elements | |
US5673590A (en) | Drive device for a movable part of a motor vehicle | |
IT1196321B (en) | DRIVE DEVICE USED IN A WINDOW REGULATOR | |
SU1420287A1 (en) | Maltese-cross movement | |
JPS614606A (en) | Centripetal chucking device | |
KR960004815Y1 (en) | Probe opening/closing plate driving apparatus | |
SU953305A1 (en) | Reversive apparatus | |
US4103569A (en) | Programming cam indexing mechanism | |
GB1363487A (en) | Switching device for tape recorder | |
SU964562A2 (en) | Device for selecting and feeding cassettes to diascope gate aperture | |
SU885652A1 (en) | Double side action rachet mechanism | |
JP2005102376A (en) | Mobile linear driving mechanism | |
JPS61153080A (en) | Valve opening detecting device |